Pre-concentration of fluorite from a rare earth element …
The flotation concentrate was first subjected to magnetic separation to …
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The flotation concentrate was first subjected to magnetic separation to …
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Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). This mineral is widely distributed through different deposits. However, in most cases, fluorite is tightly associated …
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At pH 10, the single mineral flotation results show that with the increase of SS dosage, the flotation recovery of fluorite rapidly decreases from 61.5% to 35.31%, while the flotation rate of ...
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Fluorite flotation tests were carried out with the actual and new schemes. Fig. 2 showed the photographs of the tailing slurries after being settled for 96 h from the flotation test with the actual scheme and being settled for 2 h from the test with the new scheme. With the actual scheme (Fig. 2 a), 96 h of sedimentation did not produce …
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Fluorite (CaF2), as an important strategic mineral source, is usually separated from calcite by the common froth flotation method, but this separation is still not selective enough. The development of a selective collector and/or depressant is the key to achieving high selective separation. 1-Hydroxyethylidene-1,1-diphosphonic acid (HEDP …
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Using sodium oleate (NaOL) as a collector, the flotation characteristics of natural colorless fluorite (CF), green fluorite (GF), and purple fluorite (PF) were investigated through micro-flotation tests, …
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In this study, OBHA was used as collector for the flotation separation of fluorite and calcite. Under a natural slurry pH environment, the recovery of fluorite reached 80 % while calcite recovery was less than 5 % with 3 × 10 −4 mol/L OBHA. The flotation separation of fluorite from calcite can be achieved without the addition of depressants.
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After ultrasonic pretreatment of pulp inhibited by sodium humate for 39 min, the flotation recovery of fluorite reached 84.74%, while the flotation recovery of calcite was only 11.47%, with a difference of 73.27%. Exploring the mechanism of ultrasonic pretreatment, it is found that the absorption intensity of sodium humate on the surface of ...
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In order to further investigate the effect of citric acid on the flotation behavior of minerals, the fluorite-barite binary mixed ore was prepared in a ratio of 1:1, and the pH value and the amount of citric acid were used for reverse flotation separation of fluorite-barite binary artificial mixed ore. The results are shown in Fig. 3.
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The flotation recovery of scheelite and fluorite keeps at about 75% and 10%, respectively, at the pulp pH 9.3~9.6 and PA-Na concentration from 30 to 50 mg/L. IR spectra results suggest that PA-Na ...
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DOI: 10.1016/j.mineng.2023.108442 Corpus ID: 264367037; An integrated experimental and computational investigation of N,9,10-trihydroxyoctadecanamide as a potential collector for the flotation separation of fluorite and calcite
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Ask the Chatbot a Question Ask the Chatbot a Question fluorite, common halide mineral, calcium fluoride (CaF 2), which is the principal fluorine mineral.It is usually quite pure, but as much as 20 percent yttrium or cerium may replace calcium.Fluorite occurs most commonly as a glassy, many-hued vein mineral and is often associated …
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The mixture of sodium silicate and aluminum sulfate has also been used as the depressant in fluorite flotation, aiming at the elimination of sulfate minerals and calcite, and named as the A-3 series depressant [106]. Compared with water glass, the grade …
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Fluorite, also known as fluorspar, is a widely occurring mineral found in various geological settings around the world. It is a colorful and highly valued mineral due to its vibrant fluorescence when exposed to ultraviolet light, which gives it its name. Fluorite has a fascinating range of physical properties and has numerous industrial, scientific, …
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Flotation process modelling is not a simple task, mostly because of the process complexity, i.e. the presence of a large number of variables that (to a lesser or a greater extent) affect the final ...
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Abstract The article presents the case-study of flotation of fluorite ore from Kamarposht mine, Iran. The flotation tests allowed optimization of consumption of chemical reagents. The recommended process conditions enable production of flotation concentrate at fluorite content of 61.4% and fluorite recovery of 85.88%.
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As shown in Fig. 4 (a), the flotation recovery of fluorite and calcite has significantly different responses to the change in the composition of the mixed collector. As the proportion of DDA increased, the recoveries of fluorite and calcite have opposite trends. The recovery of fluorite has gradually declined, and calcite recovery shows an ...
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Barite and fluorite have similar physical and chemical properties and floatability, and traditional flotation reagents are difficult to effectively separate these two minerals. In order to realize the effective separation of the two minerals, a new system with high selectivity and strong collecting ability, α-BLA ( bromododecanoic acid) system, was …
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Semantic Scholar extracted view of "A novel method for desulfurization and purification of fluorite concentrate using acid leaching and reverse flotation of sulfide" by Hang Liu et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,989,018 papers from all fields of science ...
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Flotation results showed that, in the presence of sodium oleate (NaOL) and SPS, the flotation recovery difference between fluorite and celestite reached 76.26% and the grade of fluorite ...
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As an important strategic non-metallic mineral resource, fluorite has been …
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Results of flotation of fluorite from te chnogenic tailings in var ious grinding modes . ... As a result, a fluorite co ncentrate was obtained, with a CaF 2 content of 95.26%, ...
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The recovery of fluorite decreased more rapidly than barite when the SHMP concentration was increased to 2.29 × 10 −6 M and the difference in recovery was about 60%. With a further increase in the SHMP dosage, the difference in recovery between fluorite and barite reduced. 3.3. Flotation of artificial mixed minerals
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Whereas a metallurgical-grade fluorite is obtained by gravity and magnetic separation methods, flotation is the major concentration process for the production of acid-grade fluorite. Selective ...
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The authors provide insight into the problem of selective flotation of fluorite from quartz–fluorite ores. The flotation of fluorite mineral from ores by using acidized water glass as depressant ha... SRL covers the elucidation of properties and processes that occur at the boundaries of materials; surfaces and interfaces. Both the physical ...
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Through the flotation process of primary roughing, primary sweeping and …
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Fluorite, as a scarce nonrenewable strategic non-metallic mineral resource, is the primary raw material for fluorine products used in diverse fields such as metallurgy, national defense, chemical and optical industries. With the increasing expansion of the related fields, the demand for high-quality …
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Fluorite is an important strategic mineral. In general, fluorite ores will contain a certain amount of calcite gangue mineral. Thus, they need to be separated from each other. For an economic …
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Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). This mineral is widely distributed through different deposits. However, in most cases, fluorite is tightly associated with gangue, such as calcite and quartz. In this paper, different depressants are tested in the flotation of fluorite in two different laboratory …
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In this study, the activation mechanisms of fluorite inhibited using Na 2 SiO 3 by adjusting the solution pH to neutral and slightly alkaline conditions were investigated. The solution chemistry of sodium silicate and microflotation tests showed that SiO(OH) 3 − in the Na 2 SiO 3 solution strongly inhibited fluorite flotation, while H 4 SiO 4 and SiO …
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